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This paper investigates the construction method of pandiagonal magic cube. First, we define a pandiagonal Latin cube. According to this definition, the cube can be constructed by simple methods. After designing a set of orthogonal pandiagonal Latin cubes, the corresponding order pandiagonal magic cube can be constructed. In addition, we give the algebraic conditions of the universal diagonal Latin cube orthogonality and the strict theoretical proof. Based on the proposed method, it can be shown that at least <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>6</mn><msup><mrow><mo>(</mo><mi>n</mi><mo>!</mo><mo>)</mo></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula> pandiagonal magic cubes of order <i>n</i> is formed through a pandiagonal Latin cube. Moreover, our method is easy to implement by computer program.